I'm running the game on my Mac via Parallels 10 version Version 10.0.2 (27712). For reasons I don't know, I get major graphical errors within the game to a point where I can't even play. My OS for Parallels is Windows 8.1. I've had no issues running Gmod or various other games, but for some reason I am having issues with this one. Here's a link to how the error looks: http://postimg.org/image/qbmrwqwrd/ Any suggestions on how to resolve this issue?

We're putting out a native mac version eventually which will fix these problems. In the meantime you'll be better off reporting these problems to the Parallels team. I can't promise a timeline for the mac version unfortunately, but it is one of my major priorities once the Steam release is done, which will probably be next week.